Scrap Gold Value Estimator
Use this calculator to estimate the melt value of scrap gold jewelry, coins, or dental gold based on live spot price, purity, and expected buyer payout.
Tip: For mixed lots, calculate each karat group separately for better accuracy.
How this gold price scrap calculator works
Scrap gold is priced by metal content, not by retail jewelry markup. This calculator estimates the intrinsic value of your gold by converting your item weight to pure gold content and multiplying it by current market spot price. From there, it applies a buyer payout percentage and subtracts any fixed refining fee.
In plain terms: weight × purity × spot price, then adjust for the real-world offer rate you can expect from pawn shops, jewelers, refiners, or mail-in buyers.
Inputs explained
1) Spot price (USD per troy ounce)
Gold spot price changes constantly. The input expects dollars per troy ounce (not regular ounce). One troy ounce equals 31.1034768 grams.
2) Weight and unit
Enter your item weight and choose the matching unit:
- Grams (g) – common for jewelry scales.
- Pennyweight (dwt) – common in jewelry trade.
- Troy ounces (ozt) – common for bullion.
3) Karat purity
Karat tells you how much of the alloy is gold. The formula is: purity fraction = karat ÷ 24.
- 10k = 41.67% gold
- 14k = 58.33% gold
- 18k = 75.00% gold
- 22k = 91.67% gold
- 24k = 99.9%+ (near pure)
4) Buyer payout rate and fee
Most buyers do not pay 100% of melt value. Typical retail-facing offers may range from 60% to 95% depending on volume, location, and negotiation. A fixed fee can further reduce your final payout.
Step-by-step formula
- Convert weight to grams.
- Compute purity fraction using karat ÷ 24.
- Find pure gold grams = total grams × purity fraction.
- Spot per gram = spot per troy ounce ÷ 31.1034768.
- Gross melt value = pure grams × spot per gram.
- Estimated offer = (gross melt × payout %) − fee.
Why this estimate matters before you sell
Without a baseline estimate, it is easy to accept a low quote. A scrap value calculation helps you compare offers and ask better questions. If one buyer is significantly below estimated melt value, you can challenge the quote or walk away.
This is especially useful for inherited jewelry lots, broken chains, single earrings, dental scrap, and mixed-karat items.
Best practices for better offers
- Sort pieces by karat before weighing.
- Remove non-gold components when possible (stones, clasps, springs).
- Get at least 2–3 quotes from different buyer types.
- Ask whether quote is based on same-day spot or delayed pricing.
- Document scale readings and karat marks with photos.
Frequently asked questions
Is scrap gold value the same as jewelry store value?
No. Jewelry store value includes craftsmanship, brand, and retail margin. Scrap value is only the recoverable metal value.
Does white gold or rose gold change the math?
The alloy color does not matter for melt valuation as long as karat purity is accurate.
Can I use this for silver or platinum?
The logic is similar, but constants and market prices differ. This calculator is designed specifically for gold.
Is this a guaranteed offer?
No. It is an estimate for planning and comparison only. Actual offers vary by assay results, market timing, and buyer policies.
Final takeaway
A good gold price scrap calculator gives you negotiating power. Start with current spot, use accurate weight and karat values, then apply a realistic payout rate. Even a quick estimate can prevent costly underpricing when selling scrap gold.